Abstract:
A rotary atomizing head includes an outer peripheral surface washing passage open onto an atomizing head outer peripheral surface for causing wash fluid supplied from a feed tube to flow out into an annular clearance between the rotary atomizing head and a shaping air ring. An outflow opening of an outflow passage constituting the outer peripheral surface washing passage is provided in a position closer to the backside into the annular clearance by a length dimension than a front end surface of a front ring section constituting the shaping air ring. Further, the outflow opening opens to the annular clearance in an angle that is an acute angle to the atomizing head outer peripheral surface.
Abstract:
A coating device comprises at least one application apparatus to discharge a coating agent from at least one coating agent nozzle. The application apparatus is configured to apply an oscillation to at least one of the coating agent and at least one coating agent jet such that at least one of the coating agent and the at least one coating agent jet break up into droplets.
Abstract:
A system including an electrostatic tool including a handle, a first trigger configured to move between a first trigger position and a second trigger position, wherein the electrostatic tool is configured to be inactive when the first trigger is in the first trigger position and to spray a coating material when the first trigger is in the second trigger position, an electrostatic activation system configured to activate and deactivate electrical charging of the coating material, and wherein the first trigger and the electrostatics activation system may be separately and simultaneously engaged with a single hand.
Abstract:
An apparatus and method for aerial chemical trimming of vegetation, the apparatus including an elongated boom suspended from an aircraft, a plurality of nozzles aligned vertically along one side of the boom, and a reservoir and pump coupled to a lower end of the boom for supplying an herbicide through the boom to the plurality of nozzles. In use, the boom is positioned alongside a row of vegetation to be trimmed and the herbicide is pumped from the reservoir, through the boom, to the nozzles and sprayed directly onto the vegetation. The boom is then moved along the row of vegetation.
Abstract:
An electrostatic sprayer for spraying a liquid includes a nozzle formed from a a nozzle body that has an inlet for receiving a liquid and a liquid tip having an outlet for ejection of the liquid to form a liquid spray. The nozzle also includes an electrode disposed around the outlet of the liquid tip for charging the liquid and a dielectric shroud disposed around at least a portion of the liquid tip to prevent leakage currents from reducing a potential of the electric field between the liquid and the electrode, which would otherwise reduce the effectiveness of the sprayer. A conductor that couples the electrode to a power supply may pass through a hole extending through the shroud. The shroud may include one or more vents to permit air and liquid to pass through the dielectric shroud to reduce accumulation of liquid.
Abstract:
A system, in certain embodiments, includes a nozzle. The nozzle includes a liquid passage, a first pneumatic passage, and an exit surface. The exit surface includes at least one recirculation inducing feature configured to reduce deposits adjacent to the first pneumatic passage.
Abstract:
An apparatus for spraying and inducing an electrostatic charge upon a liquid in excess of 0.8 millicoloumb/kilogram is connectable to a boom fitted to a vehicle, such as an aircraft, having a dc power supply. The apparatus comprises a nozzle constructed from a substantially non-conductive material and includes a spray tip designed to provide a hollow conical spray pattern. A support member extends from the nozzle and supports a charging electrode for inducing an electrostatic charge upon the liquid sprayed through the nozzle. The charging electrode attaches to the support member and is electrically connectable to the dc power supply. The charging electrode includes a cylindrical portion and a plurality of corona discharge members extending inwardly from a distal end of the cylindrical portion adjacent to the spray tip. The charging electrode is positioned to permit the hollow conical spray pattern to pass unhindered therethrough.
Abstract:
An atomizer has a chamber holding a liquid containing particles of a desired material. Aerosol particles are formed by using an aspirating nozzle or ultrasonic vibrator and the aerosol particles are carried in a gas flow. The aerosol particles are treated by increasing the charge on the aerosol particles by contact with a high voltage electrode and the aerosol particles are passed through inertial separator stages to remove large aerosol particles from the flow so they are not discharged from the atomizer.
Abstract:
Air atomizing induction charging spray nozzles suited for use with conductive liquids, solutions, suspensions or emulsions. These systems feature a high level of the spray charging at low induction--electrode voltage and current. Primary benefits include consistent, reliable operation in harsh agricultural and industrial environments with a wide range of spray formulations, especially those having relatively high concentrations of abrasive and conductive materials. Internal and external surfaces are configured to minimize potential differences between electrode and ground. Such nozzles may employ external cavities, field concentrators, hoods and other structures and arrangements to affect aerodynamic flow of gases within the vicinity of the nozzles and electrostatic and electrodynamics effects such as those caused by electrical fields within the vicinity of the nozzles.
Abstract:
Particles of spray solution are given with an electrostatic charge by applying voltage of 300 to 800 V thereon as the solution passes through the tip of the spray nozzle of an electrostatic spray dispenser. The tip of the spray nozzle is separate and adjustable with respect to the nozzle and has on its inner surface the electrode